/Engine/Source/Runtime/Engine/Classes/Kismet/KismetStringLibrary.h
Takes an array of strings and removes any zero length entries.
The number of elements left in InArray
static int32 CullArray ( const [FString](API\Runtime\Core\Containers\FString) & SourceString, [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & InArray )